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signatures

OriginType is an open-source AI handwriting tutor that teaches print, cursive, signature development, and advanced typography through adaptive lessons, printable worksheets, and handwriting analysis from uploads or stylus input. It helps learners build control, legibility, and personal writing style, while offering a pathway from handwriting practice to designing real digital typefaces. https://roxanneardary.com/origintype/

MIME content type definitions mapped with file extensions and file signatures: https://mime-types-docs.pommalabs.xyz/

A Python implementation of Aletheia

Pure Python port of minisign: a dead simple tool to sign files and verify digital signatures.

development fork of https://android.googlesource.com/platform/tools/apksig.git

Identify confidential and sensitive info in source code repos by data-leakage "signatures."

Integrate Aletheia into your Django pages.